Michigan fans continue to wait on San Francisco's Jim Harbaugh
Michigan continues to wait on San Francisco's Jim Harbaugh. (USATSI)

As the NFL season nears its conclusion, the speculation regarding Michigan's offer to Jim Harbaugh, and whether he plans to accept it, has only become more intense.

While Harbaugh tries to finish the season with the San Francisco 49ers, Michigan fans are hanging on to every word of every pendulum update in hopes that the former Wolverines quarterback will come home to Ann Arbor.

Since today is Harbaugh's birthday, Michigan football's Twitter account decided to make sure, as if he didn't already know, that the program and its fans are thinking about him.